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Ivonne Acosta-Alba and Hayo M. G. Van der Werf
Many indicator-based methods for the environmental assessment of farming systems have been developed. It is not the absolute values of the indicators that reveal whether the impact of a system is acceptable, but rather the distance between these values a...
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Huashuai Liu, Fan Yang and Hongchuan Wang
Climate change poses higher requirements on ocean engineering design, and reasonable estimation of design wave heights plays a crucial role in coastal protection and offshore engineering. Extreme value analysis is widely used in frequency calculations of...
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Vamsheedhar Reddy Pillareddy and Ganesh Reddy Karri
Cloud computing is a prominent approach for complex scientific and business workflow applications in the pay-as-you-go model. Workflow scheduling poses a challenge in cloud computing due to its widespread applications in physics, astronomy, bioinformatic...
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Maashele Kholofelo Metwane and Daniel Maposa
Financial market data are abundant with outliers, and the search for an appropriate extreme value theory (EVT) approach to apply is an endless debate in the statistics of extremes research. This paper uses EVT methods to model the five-year daily all-sha...
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Chunchun Li, Manuel Günther, Akshay Raj Dhamija, Steve Cruz, Mohsen Jafarzadeh, Touqeer Ahmad and Terrance E. Boult
Clustering is a critical part of many tasks and, in most applications, the number of clusters in the data are unknown and must be estimated. This paper presents an Extreme Value Theory-based approach to threshold selection for clustering, proving that th...
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Amr Gharib, Evan G. R. Davies, Greg G. Goss, Monireh Faramarzi
Pág. 1 - 17
Floods are costly natural disasters that are projected to increase in severity and frequency into the future. Exceedances over a high threshold and analysis of their distributions, as determined through the Peak Over Threshold (POT) method and approximat...
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Amr Gharib, Evan G. R. Davies, Greg G. Goss and Monireh Faramarzi
Floods are costly natural disasters that are projected to increase in severity and frequency into the future. Exceedances over a high threshold and analysis of their distributions, as determined through the Peak Over Threshold (POT) method and approximat...
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Ourania Kounadi and Michael Leitner
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Ourania Kounadi and Michael Leitner
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Bowo E. Cahyono,Peter Fearns,Brendon McAtee
Pág. 54 - 59
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Yu Sun and Yingying Yang
Aiming at solving the problems of large calculation, time-consuming, and low segmentation accuracy of multi-threshold image segmentation, an adaptive threshold value based differential evolution algorithm is proposed in this paper. Firstly, an opposite l...
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Owen Jakata,Delson Chikobvu
AbstractOrientation: In light of the global financial instabilities, investors and risk analysts need extreme risk management tools to help them accurately monitor and reduce market exposure in an investment portfolio.Research purpose: The main...
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Andrzej Walega, Dariusz Mlynski, Andrzej Bogdal and Tomasz Kowalik
The paper presents an analysis of the course and frequency of high water stages in selected catchments of the upper Vistula basin in the south of Poland. The following rivers were investigated: the Dunajec?Nowy Targ-Kowaniec cross-section, the Rudawa?Bal...
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Andrzej Walega, Dariusz Mlynski, Andrzej Bogdal and Tomasz Kowalik
Pág. 1 - 15
The paper presents an analysis of the course and frequency of high water stages in selected catchments of the upper Vistula basin in the south of Poland. The following rivers were investigated: the Dunajec?Nowy Targ-Kowaniec cross-section, the Rudawa?Bal...
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Manikanta Prahlad Manda and Hi Seok Kim
Image thresholding is one of the fastest and most effective methods of detecting objects in infrared images. This paper proposes an infrared image thresholding method based on the functional approximation of the histogram. The one-dimensional histogram o...
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Pieter-Henk Boer,Elias Munapo,Martin Chanza,Issaah A. Mhlanga
AbstractOrientation: Exchange market pressure (EMP) is the selling pressure of domestic currency or excess demand needed for foreign currency.Research purpose: The purpose of this study was to analyse EMP using extreme value theory (EVT) and to...
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Daiwu Zhu, Zehui Chen, Xiaofan Xie and Jiuhao Chen
With the increase in airspace flow, the complexity of the airspace operation environment has also increased. Against this backdrop, improving the operational efficiency of airspace is crucial to ensure its efficient operation. The discrete division of co...
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Donggeun Kim and Younghwan Son
Thresholding is a digital image analysis method used to distinguish objects from the background in images and it is mainly used for void and density analysis in soil. It is important to select an appropriate thresholding method because the accuracy of vo...
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Pavlos Avramidis, Pantelis Barouchas, Thomas Dünwald, Ingmar Unkel and Dionisios Panagiotaras
In this study, soil and aquatic sediments were sampled in the Aetoliko Lagoon and its catchment area, which is exclusively dominated by olive orchards. For the first time in Greece, soil as well as sediments samples of one coherent protected aquatic ecos...
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Boris Melnikov,Tatyana Zubova
Pág. 9 - 15
The paper proposes an approach to the formulation of optimization tasks designed to model the organization?s management of value guidelines. In our approach, the development of a conceptual scheme presupposes: the formation of a list of values and their ...
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